Bump rustls from 0.19.1 to 0.20.6

[dependabot]

Bumps rustls from 0.19.1 to 0.20.6.

Changelog

Sourced from rustls's changelog.

Release history:

• 0.20.0 (2021-09-26)
  • Breaking change: Connection is now an enum instead of a trait. You can abstract over ClientConnection and ServerConnection with a bound like where C: Deref<ConnectionCommon<SD>>, SD: SideData.
  • Breaking change: the SNI arguments to ClientCertVerifier methods have been removed. The Acceptor API now allows selecting a ServerConfig based on the ClientHello instead.
  • Unclean TCP closure is now tracked by the library. This means a new error is possible when reading plaintext: ErrorKind::UnexpectedEof will be returned in this case.
  • Breaking change: insulate the rustls public API from webpki API changes:
    • PKI errors are now reported using rustls-specific errors.
    • There is now a rustls-specific root trust anchor type.
  • Breaking change: the following types are no longer exposed in the crate root, and can instead be imported through the client module exposed in the crate root: ResolvesClientCert, StoresClientSessions, WriteEarlyData, ClientSessionMemoryCache, NoClientSessionStorage, HandshakeSignatureValid, ServerCertVerified, ServerCertVerifier, WebPkiVerifier and DangerousClientConfig.
  • Breaking change: the following types are no longer exposed in the crate root, and can instead be imported through the server module exposed in the crate root: AllowAnonymousOrAuthenticatedClient, AllowAnyAuthenticatedClient, NoClientAuth, ResolvesServerCertUsingSni, NoServerSessionStorage, ServerSessionMemoryCache, StoresServerSessions, ClientHello, ProducesTickets, ResolvesServerCert, ClientCertVerified and ClientCertVerifier.
  • Breaking API change: QuicExt::write_hs() now returns a KeyChange type that returns handshake or 1-RTT keys. In the case of 1-RTT keys, a KeyChange also includes a Secrets type that must be used to derive further key updates, independent from the rustls Connection. The QuicExt::next_1rtt_keys() method has been removed.
  • Breaking API change: QUIC header protection keys now use a new type that directly exposes a masking/unmasking operation.
• 0.20.0-beta2 (2021-07-04)
  • Breaking change: internal buffers are now limited to 64 kB by default. Use Connection::set_buffer_limit to change the buffer limits to suit your application.
  • Breaking API change: PEM parsing now lives in the rustls-pemfile crate. This means rustls::internals::pemfile and rustls::RootCertStore::add_pem_file no longer exist.
  • Breaking API change: ServerCertVerifier::verify_server_cert and ClientCertVerifier::verify_client_cert pass the end-entity and intermediate certificates separately. This means rustls deals with the case where the certificate chain is empty, rather than leaving that to ServerCertVerifier/ClientCertVerifier implementation.
  • Breaking API change: SupportedCipherSuite is now an enum with TLS 1.2 and TLS 1.3 variants. Some of its methods have moved to the inner Tls12CipherSuite and Tls13CipherSuite types. Instead of usable_for_version(), it now has a version() method. get_hash() has been renamed to hash_algorithm() and usable_for_sigalg() to usable_for_signature_algorithm().
  • There are now 80% fewer unreachable unwraps in the core crate thanks to large refactoring efforts.
  • Breaking API change: the WebPkiError variant of rustls::Error now includes which operation failed.
  • Breaking API changes: These public API items have been renamed to meet naming guidelines:
    • rustls::TLSError to rustls::Error.
    • rustls::ResolvesServerCertUsingSNI to rustls::ResolvesServerCertUsingSni.
    • rustls::WebPKIVerifier to rustls::WebPkiVerifier.
    • rustls::ciphersuites to rustls::cipher_suites.
    • rustls::ALL_CIPHERSUITES to ALL_CIPHER_SUITES; rustls::DEFAULT_CIPHERSUITES to DEFAULT_CIPHER_SUITES.
    • rustls::ClientHello::sigschemes to rustls::ClientHello::signature_schemes.
    • rustls::RootCertStore::get_subjects to rustls::RootCertStore::subjects.
    • rustls::ServerSession to rustls::ServerConnection.
    • rustls::ClientSession to rustls::ClientConnection.

... (truncated)

Commits

• c6dcb4c Remove authors from Cargo metadata (see RFC 3052)
• a80fff5 Bump version to 0.20.6
• bfe0d62 Update changelog for 0.20.6
• 2f15464 Revert #1016 (attach location context to corrupt message errors)
• 6cf275a Move Debug impls closer to their types
• 94428a3 tests/api.rs: Fix unused variable
• bf5ecb8 Output hex for Payload Debug impls
• 4fc3a3a Impl Debug for dyn {Client,Server}CertVerifier
• 480f0a7 Add test for ConfigBuilder's Debug impl
• 08429bc Improve Debug impls for wrapped enums
• Additional commits viewable in compare view

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